precompose-utf8: fix spelling of "want" in error message

Noticed using Lucas De Marchi's codespell tool.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

compat/precompose_utf8.c

@@ -134,7 +134,7 @@ struct dirent_prec_psx *precompose_utf8_readdir(PREC_DIR *prec_dir)
 			if (prec_dir->ic_precompose == (iconv_t)-1) {
 				die("iconv_open(%s,%s) failed, but needed:\n"
 						"    precomposed unicode is not supported.\n"
-						"    If you wnat to use decomposed unicode, run\n"
+						"    If you want to use decomposed unicode, run\n"
 						"    \"git config core.precomposeunicode false\"\n",
 						repo_encoding, path_encoding);
 			} else {